Nut-making machine.



W. L. GLOUSE.

NUT MAKING MACHINE.

APPLICATION FILED sEPT. 23. 190s.

Patented Dec. 21, 1909.

4 SHEETS-SHEET l.

l @mamon my@ www.

W. L. GLOUSE.

NUT MAKING MACHINE.

APPLICATION FILED SEPT. 23,1908.

Patented Dec. 21, 1909.

4 SHEETS-SHEET 2.

Wi h1 aooeo atkozmujo W. L. GLOUSE.

NUT MAKING MACHINE.

APPLIoATIoN FILED SEPT. 23,1908.

Patented Dec. 21, 1909.

4 SHEETS-SHEET 3.

Y STATES 'PATENT carroza CLUUSE DF m, "OHIO, .YASSIGNUB 1ro THE N'ATIUNA'L WKCHINEICY Umani, UFTTIFFIN raap),

. 1mm-'mme ipec'fmtton ofL'etters'Ba'tent.

Patented `D0. '21,

To fall whom it may concern:

4Be it known that I, WILLIAM L. Gronau, a ,citizen of -the United States, xresiding at Tifiin, in the county-of .Seneca and .Stateef Ohio, .have invented a new and useful .Nitt- Making Machine, of which -the following 'is' a specification. c

This `invention relates to machines .employed for the manufacture of -hot pressed nuts.

In machines of .this class the female die is formed in sections, and during the proc'- ess of lmanufacture ofthe lnut thesesections are subjected to enormous strain Atending -to force them apart, the .strain occurring at 'different points in the width of `the dies in accordance with the temperature of the heated bar. from which the .nut is punched;

the character of the metal; .the thicknessgofV the nut, and .the .degree .of .compression exertedby the crowner in sha ing-the head df the nut. The greatest straln will occur .at one time 'at the forward or @entrance end of the die, and at .other times near the rear end thereof and up to the present .ti1ne,no.satis factory means has ybeen .employed'fo'r' forming a backing for the entire die.surface,.and at the same .time permitting the necessary close adjustment which machines of .this class require.

One of the principal objects of the invention is to .overcome this -ditiiculty and provide a .rigid backing and support for the die sections, such backing and support covering the entire area exposed to pressure, and being at the same time of such construction as to tpermit close adjustment .as may bev required from time to time to compensate for wear or where new dies are substituted for old ones.

A further object of the invention is .to provide a novel .form of clamp and adjusting devicefor the male die.

A still further object of the invention is to improve and vsimpli the construction of the male die carrier-an its operating means and to provide for the adjustment of the parts in case of wear.

A still further object of the inventlon 1s to provide an improved mounting for the crowner and to so arrange the same that .the crowner .maybe .readily removed from the machine Iwhen necessary without .disturbing the :mam female die. y L- .A.st1ll further object rof the invention .is

ating .means for the piercer, and :further to simplify and improve the construction of the .piercerand crowner actuating means.

.Astill further object of the invention is to provide means .for .positively discharging or picking oii' the,finished .nut after the latter ha been :forced .from the 'female-die by the crowner.

v7With these and other objects .in view, as will .moreV fully .hereinafter appear, .the 'invention consists in certain novel features of construction and arrangement of fparts, hereinafter fully described, illustrated -in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that various Vchanges in the form, proportions, size and minor details of the Vstructure may ybe .made without departing from the spirit or sacricing any of the advantages of the invention.

In the accompanying drawings Figure 1 is a sectional elevation :of a nut machine constructed in accordance with the invention. Fig. 2 is a. pla-n view of the same. F-ig. 3 is a .face view of the female die and its carrying and adjusting mechanism. Fig. 4 is a sectional plan view of the crowner clamp or carrier. Fig. 5is a perspective view of a portion of the same. Fig. 6 is a -detail vperspective view of one of the sections of the crowner carrying clamp.

8 is an elevation of the male dle c amping and adjusting means.

Similar numerals of reference are` Yemployed to indicate corresponding j arts throughout the several figures of the rawings.

The. working parts of the machine are mounted in a massive frame 10 .that is ,provided with bearings for the support o'f'three shafts 1l, 12 and 13, the shaft 11 being provided at one side of the machine with fast and loose pulleys 14, and a fly wheel 15. This shaft, also, carries a pinion 16 'that intermeshes with two gears .17A and 18 carried by the shafts 12 and 13, respectively.

At one end of the frame are arranged to provide an improved carrying and qper- 7 is a similar view of the locking ke Fig.

guides for the reception of a horizontally reciprocatory slide 2O that is provided with vertical guideways 21 for the reception of a pair of bearing blocks 22 that receive a :rank pin 23 carried by the shaft 12. -As the shaft is rotated, the crank pin is carried around, and the bearing blocks reciprocate vertically in the guides 21 and impart movement to the main slide 20. In order to compensate for wear of the blocks and guides, a wedge block 24 is arranged, to re- :iprocate with the bearing blocks and is connected to one of them by a screw 25 which may be turned for the purpose of adjusting the wedge and thus compensating for VQH'.

At the front end of the slide are arranged two clamp blocks 28 and 29 for the reception of the male die 30, and these blocks are firmly clamped in place by a pair of cross bars 31 that are secured in place by nuts 32 screwing on vertical bolts 33 carried by the main body of the slide. The clamp blocks are further held in place and laterally adjusted by means of a wedge block 35 that extends between one end of the blocks and the adjacent side wall of the recess in which said blocks are arranged, and this wedge may be adjusted by screws 36 extending through threaded openings formed in the upper clamp bars 31.

The male die 30 is of hexagonal or other contour in accordance with the shape of the nut to be formed, and its rear end abuts against a hollow set screw 37 passing through a threaded block 38 that is carried by the main slide. By turning this screw the die may be adjusted in the direction of its length for the purpose of altering the thickness of the nuts to be made.

Extending through the hollow set screw and into the bore of the male die is an ejector rod 40 the rear end of which abuts against a wear plate 41 that is carried by arl/cross bar 42 secured to or forming a part/of the fixed frame of the machine. The function of the ejector is to push out the punchings or wads of metal which are forced into the bore (of the male die by the piercerin the formation of the central opening of the nut.

The central portion of the frame of the machine is provided with a cross bar 48 having a recess in which are arranged the two sections 49 of the female die, the die opening being of a contour corresponding to that of the male die 30. Arranged in the recess at the sides of the die sections 49 are wear plates 47 which are engaged by set screws 51, said screws serving to properly center and adjust the die sections laterally of the machine, while the screws afford the necessary sup ort and 'backing to resist the working strain. backings for 4both of the die sections, while the upper screws bear against the upper The central screws form n accomplish this result owing to the fact that they cannot'form a backing for the entire surface of the die sections, and, further, that it is almost impossible to adjust a plurality of screws to precisely the same point, so that the resistance offered to movement of the.

die by one screw may be greater or less than that offered by the remaining screw or screws, and in such case the die sections would be moved from place.

In carrying out the present invention the upper and lower walls of the recess 50 are arranged on oblique lines, as illustrated in Fig. 3, and fitting between these Oblique walls and the horizontal faces of t-he die sections are wedges that fit solidly in the spaces. The larger ends of these wedges are engaged by set screws 56 tapped in openings in the cross bar 48. These screws may be adjusted for the purpose of moving the wedges and the latter will form backings for the entire upper and lower surfaces of the die sections and will offer uniform resistance throughout the entire surface areas, so that the die sections will be held firmly together. The employment of the wedges moreover permits adjustment to compensate for wear, and will, also, ermit the employment of other dies of different size in ace cordance with the size of the nut to be made.

At the end of the main frame adj acent. the large gear 18 is a slidably mounted crowner carriage 60, provided at one end with a rectangular split box 61 held in place by a cross bar 62 that is fastened down by bolts 63.' The two vertical edges at each side of this boX are provided with lips 65 at'the rearward of which are spacing keys 66. These spacing keys serve to transmit the strain from the block 61 to slide 60. These two spacing keys 66 are connected by the cross bar 66A so that they are removed and replaced at one and the same time. The cross bar 62 bears on the bar 66A thereby holding the keys in place, and clamping the box 61 and the crowner holder 68. When the cross bar 62 is removed the keys 66 can be taken out and the block 61 slid back thus permitting' the rem-oval of the crowner as hereinafter described.

The box is internally threaded for the reception of the threaded chuck 68, the inner end of which is bored and shaped for the reception of 4the threaded rear end of a crowner G9, this crowner corresponding in cross sectional contour to the male die 30 and serving in connection with the male die to press the nut into shape and to hold the nut during the piercing operation.

It will be observed that the crowner extende` for a. shortI distance into the female die. and if the locking key 66 is removed and the crowner' holding block is allowed to inofe outward, the end of the crowner may be drawn out of the die and then detached for the-purpose of inserting a new crowner when necessary, and this operation may be accomplished without disturbing the adjustnxent of the female die sections.

The slide or carriage (S0 is provided with two depending lugs 70 as shown by dotted lines in Fig. 1, and these are arranged to be engaged by cams on the shaft 13. As the the cams and the crowner will be forced forward into the die. The reverse moveupent is accomplished by springs 73 which at e connected to the lower ends of a pair 45 (f levers 74 fulcrumed on a stationary pin /5. the upper ends of these levers engaging against.- a cross bar 76 that forms the rear part of the slide G0. This cross bar is engaged by a set screw 77 that screws into a threaded opening formed in the main frame, and the outer end of the set screw is provided with an operating handle 78'that is provided with peripheral notches for the reception of a locking pawl 79 pivoted to the frame, the pawl serving to hold the screw in any position to whichl it may be adjusted.

Mounted slidably in the carriage 60 is a lsecond carriage 80 which is provided with a threaded sleeve 81 in which the piercer die 82 is threaded. This sleeve or the bar 84 is clamped in the forward end of sleeve 80' by means of a toe clamp. The rearward end of bar 84 extends as a stem through the central passage of the screw 77 and is provided at its outer end with a handle 85. The bar 84 thus acts both to transmit the strain from the piercing tool 82 to the slide 80 and to pull the piercing tool 82 out of the nut. This secondary carriage 80 has one or more depending ears 72 arranged to be engaged by cams 89 on the shaft 13, and is, also, provided withears 90 arranged opposite the ears 88 and, also, engaged by the cam, so that both the forward and `rearward movement of the piercer may be made positive. In addition to the cam, a spring 92 is employed to assist the retractile movement of the piercer, this spring being connected to a lever 93 that is pivoted on the pin 75 and the upper end of the lever being connected by a link 94 to the piercer slide.

In the operation df the machine as thus l5 in front of the female die. The main slide shaft rotates, the lugs will be engaged. by

far described, a bar bf heated metal is heldl 20 is then pushed forward and the male die 30 cuts the nut blank off the bar (the bar is narrower than the nut and the blank is cut CIeaiLOmKthe/bar and it not punched off) and car/res it into the female die and against the crowner. The pressing of the male die 30 against the crowner forms the nut into shape and makes the crown upon the nut, and while held in this way the piercer 82 is thrust forward to punch the central opening in the nut, the punching, or wad of metal, being forced in the central portion of the male d1e 80. The male die 30 then retracts and the punching, or wad of metal, is carried into engagement with the relatively stationary ejector 40 and is forced out of the male die. The crowner, which during this time has remained stationary against the set screw 77, then moves forward and pushes the nut out of the female die 49.

In order to positively remove the nut from the facel of the crowner in case there should be-any tendency to stick, a kicker rod 97 is employed, this rod being guided through an opening formed in a small block 98 that is secured to the transverse bar 48. The upper end of the kicker rod is carried by a swiveled nut to which is pivoted one end of a lever 99 fulcrumed on a pin 100, the opposite end of the lever carrying an anti-friction roller 101 that enters a cam groove 102 formed in a cam disk 103 on the shaft 13. Both blocks 48 and 98 are provided with openings forming water ports that are connected to suitable supply pipes in order that jets of water may be directed against both faces of the die for the purpose of keeping down the temperature.

I claim l. In a hot pressed nut machine, a reciprocatory slide, a pair of clamping blocks thereon, a hollow male die between the clamping blocks, a pair of clamping bars engaging the said clamping blocks, a wedge block arranged at one end of the clamping block, and means for adjusting the wedge block.

2. In a hot pressed nut machine, a crowner, a crowner carrying slide, and a lilling key between the crowner and slide and removable to permit rearward movement of the crowner from the female die.

3. In a hot pressed nut machine, a frame, a stationary female die, a male die coacting therewith, a crowner slide, a block carried thereby, a. clamping bar for the block, a removable filling bar, a key between the block and bar, a crowner chuck adapted to a threaded opening in the block, and a crowner having a threaded connection with said u chuck. 12

4. In a hot pressed nut machine, a sectional die, a recessed carrier therefor having opposite inclined walls, wedges arranged between the inclined walls and the die sections, and of a width not less than the width of the die sections'to form a backing for the entire `surfaces thereof, and means for adjusting said wedges; A

5. In a hot' pressed nut niachinera die comprising upper and lower sections, a recessed support for the die, the upper and lower walls of the recess being inclined, wedges arranged between the inclined walls and the adjacent surfaces of the die sections, such wedges being of a width not less than the width of the die sections and forming backings for the entire horizontal surfaces thereof, adjusting screws 4/engaging said wedges, and adjustable side bearing screws extending through the support and engaging 15 v the vertical walls of said die sections.

. s WILLIAM L. vCLOUSE.

Witnesses:

EARL C. KNAPP, TALLER N. CLOUSE. 

